#region License

/*
 * Copyright 2004 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#endregion

#region Imports

using System;
using System.Reflection;

using NUnit.Framework;
using Spring.Objects;

#endregion

namespace Spring.Core
{
	/// <summary>
	/// Unit tests for the MethodParametersCriteria class.
    /// </summary>
    /// <author>Rick Evans</author>
    /// <author>Bruno Baia</author>
	[TestFixture]
    public sealed class MethodParametersCriteriaTests
    {
        [Test]
        public void IsNotSatisfiedWithNull () {
            MethodParametersCriteria criteria = new MethodParametersCriteria ();
            Assert.IsFalse (criteria.IsSatisfied (null), "Was satisified with null.");
        }

        [Test]
        public void IsSatisfiedWithNoParametersByDefault () 
        {
            MethodParametersCriteria criteria = new MethodParametersCriteria ();
            MethodInfo method = GetType ().GetMethod ("Foo");
            Assert.IsTrue (criteria.IsSatisfied (method), "Was not satisified with a method that takes no parameters by default.");
        }

	    [Test]
	    public void IsNotSatisfiedWhenOnlyFinalParamMatches()
	    {
            MethodParametersCriteria criteria = new MethodParametersCriteria(
          new Type[] { typeof(object), typeof(object), typeof(TestObject) });
            MethodInfo method = GetType().GetMethod("BoJangles");
            Assert.IsFalse(criteria.IsSatisfied(method), "Was satisified with a method that only matches on the final parameter.");
	    }

        [Test]
        public void IsSatisfied () 
        {
            MethodParametersCriteria criteria  = new MethodParametersCriteria (
                new Type [] {typeof (string), typeof (DBNull), typeof (TestObject)});
            MethodInfo method = GetType ().GetMethod ("BoJangles");
            Assert.IsTrue (criteria.IsSatisfied (method), "Was not satisified with a method that takes a whole buncha parameters.");

            method = GetType ().GetMethod ("BadBobbyBoJangles");
            Assert.IsFalse (criteria.IsSatisfied (method), "Was satisified with a (bad) method that takes a whole buncha parameters.");
        }

        [Test]
        public void IsNotSatisfiedIsPolymorphic () 
        {
            // i.e. derived types satisfy the criteria if a base type or interface is
            // specified as one of the parameter types
            MethodParametersCriteria criteria
                = new MethodParametersCriteria (new Type [] {typeof (TestObject)});
            MethodInfo method = GetType ().GetMethod ("Diddly");
            Assert.IsFalse(criteria.IsSatisfied (method), "Was not satisified with a method that takes a base class as a parameter.");
        }

        [Test]
        public void IsSatisfiedWithParamsParameters()
        {
            MethodParametersCriteria criteria = new MethodParametersCriteria(new Type[] { typeof(int), typeof(string[]) });
            MethodInfo method = GetType().GetMethod("ParamsParameters");
            Assert.IsTrue(criteria.IsSatisfied(method), "Was not satisified with a method that takes a parameter array ('params') as a parameter.");
        }

        // some methods for testing signatures...
        public void Foo () 
        {
        }

        public DateTime BoJangles (string one, DBNull two, TestObject three) 
        {
            return DateTime.Now;
        }

        public void BadBobbyBoJangles (string one, DBNull two, string bing) 
        {
        }

        public void Diddly (ITestObject three) 
        {
        }

        public void ParamsParameters(int foo, params string[] strs)
        {
        }
	}
}
